Oral Pathology Genethics

16 Questions | Total Attempts: 82

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Oral Pathology Quizzes & Trivia

Oral pathology genethics


Questions and Answers
  • 1. 
    The constriction present in all chromosomes which joins the short and long arms is called
    • A. 

      Equatorial plate

    • B. 

      Chromatid

    • C. 

      Centromere

    • D. 

      Chiasmata

  • 2. 
    The process by which a primitive germ cell become a gamate is called
    • A. 

      Meiosis

    • B. 

      S phase

    • C. 

      Haploid

    • D. 

      Mitosis

  • 3. 
    Trisomy means
    • A. 

      3 times the amount of chromosomes complement

    • B. 

      The presence of an extra chromosome in a pair

    • C. 

      The presence of two extra chromosomes in a male

    • D. 

      One extra chromosome in each pair

  • 4. 
    The lyon hypothesis is applied to
    • A. 

      Autosomal dominant traits

    • B. 

      Autosomal recessive traits

    • C. 

      X-linked dominant traits

    • D. 

      X-linked recessive triats

  • 5. 
    Barr bodies are seen at the
    • A. 

      Cytoplasm periphery of all human cells

    • B. 

      Nuclear periphery of all cell from women

    • C. 

      Nuclear periphery of all human cells

    • D. 

      Cytoplasm periphery of all cells from women

  • 6. 
    The karotype of a patient with Klinefelter's syndrome shows
    • A. 

      44 autosomes and XO

    • B. 

      43 autosome and XYY

    • C. 

      44 autosomes and XXY

    • D. 

      44 autosomes and XYY

  • 7. 
    Hypothetically an autosomal recessive trait would be clinically present in
    • A. 

      25% of the offspring of carrier parents

    • B. 

      50% of the offspring of carrier parents

    • C. 

      75% of the offspring of carrier parents

    • D. 

      Only in males never in female offspring

  • 8. 
    Patients with an X-linked heriditary condition
    • A. 

      Are always men

    • B. 

      Have cells with many barr bodies

    • C. 

      Are always women

    • D. 

      Iff men, are generally affected more severely

  • 9. 
    The major concern for dental hygienist when treating a patient with cyclic neutrpenia should be
    • A. 

      Hemmorrhage

    • B. 

      Severe infections

    • C. 

      Chipping away of enamel

    • D. 

      Exfoiliation of teeth due to short roots

  • 10. 
    A 9yr old boy presents markedly swollen red and bleeding gingiva.  additionally he has tooth mobility and the intraoral radiographs show marked alveolar bone atrophy with vertical periodontal pockets.  which of the following will be found in this child if he were to have the papillon lefevre syndrome
    • A. 

      Diminshed wearing

    • B. 

      Lack of anterior vestibular sulcus

    • C. 

      Blue sclerae

    • D. 

      Palmoplanter hyperkeratosis

  • 11. 
    The inherited varieties of gingival fibromatosis have in common that the gingival enlargement is produced by a marked
    • A. 

      Collagenization of connective tissue

    • B. 

      Hyperplasia of teh covering of the epithelium

    • C. 

      Chronic inflammatory cellular infiltrate

    • D. 

      Alveolar bone hypertrophy

  • 12. 
    A 14yr old boy is seen in consultation because of bilateral mandibular swelling.  radiographs show a bilateral multiocular lesion in the ascending mandibular rami.  the mother of this patient has similar findings.  the most likely diagnosis is
    • A. 

      Ellis-van creveld syndrome

    • B. 

      Gorlin's syndrome

    • C. 

      Cleidocrainial dysplasia

    • D. 

      Cherubism

  • 13. 
    Two characteristic clinical componets of mandibulofacial dysostosis are
    • A. 

      Lack of clavicles and delayed teeth eruption

    • B. 

      Hypoplastic mandible and deafness

    • C. 

      Hypodontia and dysplastic nails

    • D. 

      Cleft nails and fistulas of lower lip

  • 14. 
    Odontogenic keratocysts are a clinical component of
    • A. 

      Nevoid basal cell carcinoma syndrome

    • B. 

      Meurofibromatosis of von recklinghausen

    • C. 

      Men 2b syndrome

    • D. 

      Cherubism

  • 15. 
    Torus mandibularis and torus palitinus are similar in that both are in that both are
    • A. 

      Inherited aas an autosomal dominant trait

    • B. 

      More prevelant trait is females

    • C. 

      Inherited as an autosomal recessive trait

    • D. 

      Manifested during the first years of life

  • 16. 
    Which one of the follwoing is usually  inherited as an x-linked recessive train?
    • A. 

      Hypohidrotic exctodermal dysplasia

    • B. 

      White sponge nevus

    • C. 

      Peutz-jeghers syndrome

    • D. 

      Hereditary hemmorrhagic telangiectasia